IEC 60584-1 Thermocouples - Part 1: Ed. 3.0: EMF specifications and tolerances*, 2013-08-01 Update
IEC 60584-2 Amendment 1 Thermocouples Part 2: Tolerances (Edition 1.0)
IEC 60584-3 Thermocouples - Part 3: Extension and compensating cables - Tolerances and identification system*, 2021-02-16 Update
IEC 60953-2 Rules for steam turbine thermal acceptance tests; part 2: method B; wide range of accuracy for various types and sizes of turbines
ISO 3046-1 Reciprocating internal combustion engines - Performance - Part 1: Declarations of power, fuel and lubricating oil consumptions, and test methods; Additional requirements for engines for general use
ISO 5167-1 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full — Part 1: General principles and requirements*, 2022-06-16 Update
ISO 9300 Measurement of gas flow by means of critical flow nozzles*, 2022-06-16 Update
ISO 1217:2009 history
2016ISO 1217:2009/Amd 1:2016 Calculation of isentropic efficiency and relationship with specific energy